Nut cracker



FIG. 1 is a front perspective view of a nut cracker showing my new design;

FIG. 2 is a front elevation;

FIG. 3 is a top plan view;

FIG. 4 is a bottom plan view;

FIG. 5 is an elevation from one side; and

FIG. 6 is an elevation from the other side. 

The ornamental design for a nut cracker, as shown and described. 